having error 1015 im trying to restore 4.2.1 original firmware..... i already did tinyumbrella and nothing works..what should i do?? thanks in advance..

EDIT: my baseband 6.15

You'll need to go to DFU to restore to RD Custom FWRD CFW is actually 4.1 and not 4.2.1 so it wont work giving it iOS 4.2.1 SHSH Blob.

Hope that helps~

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